<http://schema.org/description>
"The Astronomical Clock in the Cathedral at Strasbourg built in 1842 by J B Schwilgue in the form of earlier medieval astronomical clocks. The phases of the moon are shown"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/strasbourg-astron-clock/print/4347400.html>